What to do if Danfoss VLT HVAC Drive FC 102 show over current?
If your Danfoss DC drive shows an over current error, it means the inverter peak current limit (approximately 200% of the rated current) is exceeded. You should remove power and check if the motor shaft can be turned. Also, check that the motor size matches the frequency converter and verify parameters 1-20 through 1-25 for correct motor data.
How to fix earth fault in Danfoss VLT HVAC Drive FC 102?
An earth fault in Danfoss DC Drives indicates current leakage from the output phases to earth, either in the cable between the frequency converter and the motor or in the motor itself. Remove power to the frequency converter and repair the earth fault. You can also check for earth faults in the motor by measuring the resistance to ground of the motor leads and the motor with a megohmmeter.
What causes short circuit in Danfoss VLT HVAC Drive FC 102 and how to fix it?
A short circuit in Danfoss DC Drives is caused by short-circuiting in the motor or motor wiring. To resolve this, remove power to the frequency converter and repair the short circuit.
What causes 10 Volts low error in Danfoss DC Drives?
A '10 Volts low' error in Danfoss DC Drives can be caused by a short in a connected potentiometer or improper wiring of the potentiometer. Remove the wiring from terminal 50. If the warning clears, the problem is with the customer wiring. If the warning does not clear, replace the control card.
What causes overload of digital output Terminal 27 in Danfoss VLT HVAC Drive FC 102?
Overload of digital output Terminal 27 is caused by the load connected to terminal 27 or remove short-circuit connection. Check 5-00 Digital I/O Mode and 5-01 Terminal 27 Mode.
What causes overload of digital output Terminal 29 in Danfoss VLT HVAC Drive FC 102?
Overload of digital output Terminal 29 is caused by the load connected to terminal 29 or remove short-circuit connection. Check 5-00 Digital I/O Mode and 5-02 Terminal 29 Mode.
What to do if option configuration has changed in Danfoss VLT HVAC Drive FC 102?
If the option configuration has changed in Danfoss DC Drives, it means one or more options have either been added or removed since the last power-down. Check that the configuration change is intentional and reset the unit.
Why am I getting a mains phase loss error on my Danfoss DC Drives?
A mains phase loss error on your Danfoss DC Drives indicates that a phase is missing on the supply side, or the mains voltage imbalance is too high. Check the supply voltage and supply currents to the frequency converter.
How to troubleshoot heatsink temperature issues in Danfoss VLT HVAC Drive FC 102 DC Drives?
If you're experiencing heatsink temperature issues with your Danfoss DC Drives, it means the maximum temperature of the heatsink has been exceeded. Check for conditions such as: * Ambient temperature being too high. * Motor cable being too long. * Incorrect airflow clearance above and below the frequency converter. * Blocked airflow around the frequency converter. * Damaged heatsink fan. * Dirty heatsink.
What to do for DC overvoltage on Danfoss VLT HVAC Drive FC 102 DC Drives?
To address DC overvoltage on Danfoss DC Drives, connect a brake resistor and extend the ramp time.
General| Enclosure | IP20, IP21, IP55 |
|---|---|
| Ambient Temperature Range | -10°C to +40°C |
| Storage Temperature Range | -25°C to +70°C |
| Relative Humidity | 5-95% (non-condensing) |
| Communication Protocols | Modbus RTU, BACnet, Profibus |
| Certifications | CE, UL, cUL |
| Control Principle | PWM |
| Cooling Method | Forced air cooling |
| Input Voltage | 200-240V, 380-480V, 525-600V |
| Control Modes | sensorless vector control, closed loop vector control |
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